Bucket Explorer!

Cyberduck is an open source FTP client.

The SME Enterprise File Share and Sync Solution provides a comprehensive control and management solution to enable secure cloud collaboration across data points for corporations.

Jungle Disk is a leading provider of online storage software and services, leveraging the Amazon S3 platform and Rackspac infrastructure to provide easy to use and cost effective online storage and backup to our customers. The multi-platform Jungle Disk software allows users to access an unlimited online storage space via a virtual drive and also includes comprehensive automatic backup features.

Gladinet Cloud Desktop mounts cloud storage to your local desktop PC. It is a simple desktop application.

CloudBerry Explorer makes managing files in Amazon S3 storage EASY. By providing a user interface to Amazon S3 accounts, files, and buckets, CloudBerry lets you manage your files on cloud just as you would on your own local computer. PRO version offers FTP support.

S3 Browser - Windows Client for Amazon S3. User Interface for Amazon S3. Allows you to manage your Amazon S3 Buckets and files with ease!

This utility securely generates a S3 Signed URL. You can send someone this link to allows them to upload a file to S3 without requiring you to creating them an IAM account or give them credentials. This method uses the getSignedUrl method provided by AWS.

Cloud Explorer is a open-source S3 client. It works on Windows, Linux, and Mac. It has a graphical and command line interface for each supported operating system.

CrossFTP is a free FTP, Amazon S3, Amazon Glacier, and cloud storage client.* CrossFTPs main features: Multi-tab Navigation; Unicode support; Bonjour Service Discovery; Archive browsing(.zip,.tar.gz,etc.); Auto-reconnecting and anti-idle; and more.* CrossFTP Pro version is available by a license fee, which further features: Mutli-Thread transfer; Synchronization; WebDav, SFTP, FTPS, Advanced Amazon S3/Glacier support; CouldFront and URL sign support; Remote file edit; FXP; and much more.

Yarkon is a a modern, responsive and intuitive web based user interface for Amazon S3. Use it to manage buckets, create folders, upload and share files - anything that you normally do with S3, but with a fluent, intuitive and feature rich user experience, similar to what you have when using your PC. Drag & drop, context menus, copy-paste, it is all there.

The S3Fox Organizer(S3Fox), offers the ability to upload or download files to and from Amazon S3. The interface, which opens in a Firefox browser tab, looks much like that of FTP clients with a dual-pane layout. It displays files on your PC on the left, files on Amazon S3 on the right, and status or information in a panel on the bottom.

CloudBerry Drive is a tool to map your cloud storage as a local drive to access and edit files in the cloud directly from the Windows Explorer interface. Supports Amazon S3, Amazon Glacier, Rackspace Cloud Files, Windows Azure, HP Cloud Storage, OpenStack Swift, Goolge Cloud Storage

DragonDisk is multithreaded S3 Client with lots of useful features and an intuitive graphical user interface.

TntDrive allows you to mount Amazon S3 Buckets as a regular Windows hard-disk or network drive. Map Amazon S3 Bucket to Windows Drive.

Cloud Turtle is a free cloud explorer that connects you to three different storage services: Amazon S3, Nirvanix and Timeline Cloud